Genesis 42:2-6

And he said, Behold, I have heard that there is corn in Egypt: get you down thither, and buy for us from thence; that we may live, and not die.

And Joseph’s ten brethren went down to buy corn in Egypt.

But Benjamin, Joseph’s brother, Jacob sent not with his brethren; for he said, Lest peradventure mischief befall him.

And the sons of Israel came to buy corn among those that came: for the famine was in the land of Canaan.

And Joseph was the governor over the land, and he it was that sold to all the people of the land: and Joseph’s brethren came, and bowed down themselves before him with their faces to the earth.